Jelly lichen Leptogium gelatinosum

December 24th 2014

Jelly lichen Leptogium gelatinosum

Compact cushions of this tiny lichen were noted on 20th December amongst mosses in sandy soil on the top of a roadside wall at Clashnessie (NC0530). The cup-shaped apothecia are just over 1mm in diameter and arise from a dark greeny-brown, wrinkled, papery thallus with frilly edges. This species likes calcareous substrates (probably shell sand in this case) and has been recorded elsewhere in Assynt, especially on the limestone.

The photosynthetic partner of jelly lichens is the cyanobacterium Nostoc, which sometimes forms extensive, brown, lettuce-like (and slippery) colonies locally on little-used, gravelly surfaces. A nice find in a brief gap between showers of sleet and hail.

Ian M.Evans

Jelly lichen Leptogium gelatinosum under microscope. Photo I. Evans
Jelly lichen Leptogium gelatinosum under microscope. Photo I. Evans
Jelly lichen Leptogium gelatinosum sample 30x24mm. Photo D. Haines
Jelly lichen Leptogium gelatinosum sample 30x24mm. Photo D. Haines

Report a Sighting

Recent Sightings

Weasel

Single animal in Culkein Drumbeg garden (DAH) (04/12)

Kestrel

Single female bird hunting, Culkein Drumbeg (DAH) (04/12)

Wigeon

Single male bird, Lochan na Leobaig, Culkein Drumbeg (DAH) (04/12)

Red-breasted Merganser

Six birds (three pair) Lochan na Leobaig, Culkein Drumbeg (DAH) (04/12)

Fieldfare

200+ birds over trees Glen Canisp road (DAH) (02/12)

Bullfinch

Single male bird flying over trees calling, Richarn (DAH) (02/12)

Heron

Single bird, Clachtoll beach shore (John Gilbertson) (02/12)

Herring Gull

c495 birds on and around the fish farm off Eilean a' Ghamhna, Loch a' Chàirn Bhàin (DAH) (01/12)

Map